More tellingly, in places such as the coastal U.S. where the direction of the magnetic north pole differs from geographic north (the latter defined by Earth's axis of rotation), the group found that cattle positioned themselves toward the magnetic poles.
When herds stand next to power lines, which emit a mild electromagnetic field, they point in different directions. In the absence of power lines, they point along a north-south axis.
10-12-2010, 12:59 PM
Re: Cows face north and south...
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